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Yasuda Kō Lighthouse

Fl R 5s🇯🇵Kōchi (Southern Shikoku), JPOperational

Location & Light Range

About Yasuda Kō Lighthouse

This red tower stands 31 meters high, with its focal plane situated at 15 meters above sea level. The light emits a single red flash every 5 seconds. A floodlight is also present, positioned 120 meters to the west-northwest of the main tower. The structure is located in Kōchi on the southern coast of Shikoku.

Light & Optic

Characteristic Signature
Fl R 5s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
5s
Raw Code
Fl.R. period 5s
Focal Height
15m
Geographic Range
3NM

Location

City
Kōchi (Southern Shikoku)
Country
🇯🇵JP
Latitude
33.4454°
Longitude
133.9541°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
31m
Tower Color
red

Structure: Red tower; 31. F.W. floodlight 120 meters WNW

References & Identifiers

Admiralty No.
M5592.55
NGA No.
10124
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Frequently Asked Questions

How do mariners identify Yasuda Kō Lighthouse at night?+
Yasuda Kō displays the characteristic Fl R 5s — 1 red flash every 5 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Yasuda Kō Lighthouse guide vessels into?+
Yasuda Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Nahari at 3.5 NM to the ESE. Other ports served include Murotsu, Kochi (13.7 NM SE), Kannoura (18.4 NM ENE), Kochi (20.2 NM WNW), Asakawa (23.6 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yasuda Kō Lighthouse still active and maintained?+
Yes, Yasuda Kō Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Yasuda Kō Lighthouse?+
Yasuda Kō Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Yasuda Kō Lighthouse?+
You can track vessels near Yasuda Kō Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.